Jin Dongyan is a professor at the School of Biomedical Sciences at the Li Ka Shing School of Medicine of the University of Hong Kong. He said that the second wave of the new crown epidemic in China may come at any time, but due to the lack of testing now, it is difficult to judge the specific time of the epidemic.
For the upcoming "May Day" holiday, he said the movement of people will accelerate the spread of the virus, but the probability will only cause a small increase in the number of infected people.